Bernhard III, Prince of Anhalt-Bernburg

Bernhard III (died 1348) was a German prince of the House of Ascania who ruled Anhalt-Bernburg from 1323, when he succeeded his father Bernhard II. His two younger brothers renounced their claims to enter the Church, leaving him sole ruler.

In 1328 he married Agnes, daughter of Elector Rudolph I of Saxony, who bore him five children, including his successors Bernhard IV and Henry IV; after her death in 1338 he married twice more.